You clearly know how to write, but I'm not sure I loved the format of essentially having our narrator/protagonist just read us his (and his robot pals') personal history. Maybe if there was more of a twist at the end it would have paid off, but the lack of any action in the present made it lack some impact for me.
I admit this is difficult with the word constraints we have, but more showing and less telling is always the way to go if you can manage it.
Still a solid read though. I hope it doesn't sound like I'm being too negative because I still enjoyed it!